package guestbook;

import com.google.appengine.api.users.User;
import com.google.appengine.api.users.UserService;
import com.google.appengine.api.users.UserServiceFactory;

import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

public class GuestbookServlet extends HttpServlet
{
	public void doGet(HttpServletRequest req, HttpServletResponse resp)
			throws IOException
	{
		UserService userService = UserServiceFactory.getUserService();
		User user = userService.getCurrentUser();

		if (user != null)
		{
			resp.setContentType("text/plain");
			resp.getWriter().println("Hello, " + user.getNickname());
		}
		else
		{
			resp.sendRedirect(userService.createLoginURL(req.getRequestURI()));
		}
	}
}
